It’s great to be able to communicate with so many people all over the world using the Internet. But it also means that there are more opportunities for defamation, or people publishing false and injurious comments that result in damages after lawsuits.
You can sue a website for the defamatory statements it posts to a limited extent. But Facebook can’t be blamed for the inane things people say on it all the time. If someone uses the social media platform, or any other, to defame you, you can use that as evidence for your defamation suit against the insulting writer. And if, say, you are defamed on a personal or business website, then you can target the site in your suit.